unique-type-id

A rust procedural macro crate for generating unique id for the rust types.

What does it do?

It simply implements a trait for the type where is only one method - id() -> TypeId which returns a unique positive number. Unique in the whole project, but not everywhere else.

Usage

1. Add unique-type-id as dependency in your Cargo.toml:

[dependencies]
unique-type-id-derive = "0.1"
unique-type-id = "0.1"

2. Create a struct or enum and use the trait:

#[macro_use]
extern crate unique_type_id_derive;
extern crate unique_type_id;

#[test]
fn sequential_simple() {
    use unique_type_id::{ SequentialTypeId };
    #[derive(SequentialTypeId)]
    struct Test1;
    #[derive(SequentialTypeId)]
    struct Test2;
    
    assert_eq!(Test1::id().0, 0u64);
    assert_eq!(Test2::id().0, 1u64);
}

License

This project is licensed under the MIT license.